Ketonization
酮基化作用
🗣️ 情景例句
Yes, we did.
确实如此。
Good morning, ladies and gentlemen. It's very satisfying to see so many of you here.
各位女士各位先生，早上好，在这里见到你们大家使人感到非常满意。
which I found most helpful on the cross-country journey, but which I did not think I should need on the last stage.
在乡间行车途中，我觉得它非常有用，但快到家了，我倒觉得它没什么用了。